When two boats share the same hull type — in this case both the SeaArk Stealth 172 2009 and the SeaArk Super Jon 1660MV 2008 are modified vee designs with aluminum construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

On paper these two are close siblings in the size department — SeaArk Stealth 172 2009 at 17,0 ft versus SeaArk Super Jon 1660MV 2008 at 16,0 ft. Weight tells a clearer story for trailering families: the SeaArk Stealth 172 2009 tips the scales at 925 lbs — 450 lbs more than the SeaArk Super Jon 1660MV 2008 at 475 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

The power gap is worth calling out. Rated to 100 hp, the SeaArk Stealth 172 2009 has a 50-hp advantage over the SeaArk Super Jon 1660MV 2008's 50-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

For family outings this is probably the sharpest distinction between the two. The SeaArk Super Jon 1660MV 2008 is rated for 6 passengers, while the SeaArk Stealth 172 2009 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the SeaArk Super Jon 1660MV 2008 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The SeaArk Stealth 172 2009 comes in at 9 lbs per hp versus 10 lbs per hp for the SeaArk Super Jon 1660MV 2008. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.